RT Journal Article
T1 Algorithm for the Semigroup of a Space Curve Singularity
A1 Castellanos, Angel
A1 Castellanos Peñuela, Julio Antonio
AB The semigroup of values of irreducible space curve singularities is the set of intersection multiplicities among hypersurfaces and the given curve. It is an invariant of the singularity, and for plane curves it characterizes the equisingularity type considered by Zariski. For space curve singularities the semigroup of values is a numerical semigroup and it can not be computed by means of the exponents of any Puiseux parametrization, as in the plane case. We obtain an algorithm for calculating the semigroup of values of a space curve singularity, which determines the generators of the semigroup and the valuation ideals associated with the semigroup. We give a Maple version of the algorithm.
PB Springer
SN 0037-1912
YR 2005
FD 2005
LK https://hdl.handle.net/20.500.14352/50532
UL https://hdl.handle.net/20.500.14352/50532
LA eng
NO DGICYT
DS Docta Complutense
RD 25 abr 2025